<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card class="box-card">
      <!-- 搜索，添加商品 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" class="input-with-select" clearable @clear="searchGoods">
            <el-button slot="append" icon="el-icon-search" @click="searchGoods"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4"><el-button type="primary" @click="$router.push('/goods/add')">添加商品</el-button></el-col>
      </el-row>
      <!-- 表格 -->
      <el-table :data="goodList" style="width: 100%" border stripe>
        <el-table-column prop="goods_name" label="商品名称"></el-table-column>
        <el-table-column prop="goods_price" label="商品价格(元)" width="120"></el-table-column>
        <el-table-column prop="goods_weight" label="商品重量" width="80"></el-table-column>
        <el-table-column label="创建时间" width="180">
          <template slot-scope="scope">
            {{ scope.row.add_time | formDate}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="120">
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteGoods(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 页码 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
import dayjs from 'dayjs'
export default {
  name: 'List',
  data () {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      total: 0,
      goodList: []
    }
  },
  created () {
    this.getGoodsList()
  },
  filters: {
    formDate (time) {
      return dayjs(time).format('YYYY-MM-DD HH:mm:ss')
    }
  },
  methods: {
    // 获取商品列表
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', { params: this.queryInfo })
      if (res.meta.status === 200) {
        this.goodList = res.data.goods
        this.total = res.data.total
      } else {
        this.$message.error(res.meta.msg)
      }
    },
    // 搜索商品
    searchGoods () {
      this.getGoodsList()
    },
    // 修改页容量
    handleSizeChange (size) {
      this.queryInfo.pagesize = size
      this.getGoodsList()
    },
    // 修改页码
    handleCurrentChange (num) {
      this.queryInfo.pagenum = num
      this.getGoodsList()
    },
    // 删除商品
    deleteGoods (id) {
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const { data: res } = await this.$http.delete(`goods/${id}`)
        if (res.meta.status === 200) {
          this.getGoodsList()
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
        } else {
          this.$message({
            type: 'error',
            message: res.meta.msg
          })
        }
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    }
  }
}
</script>

<style lang="less" scoped>
  .el-pagination {
    margin-top: 20px;
  }
</style>
